Testing items for cosmetics/skincare products

Cosmetic/skincare product testing covers four major categories: microbiological, physicochemical indicators, safety, and efficacy, ensuring product safety and quality. Microbiological testing includes total bacterial count (reflecting hygiene status), total mold/yeast count (assessing storage stability), and specific pathogenic bacteria (such as Staphylococcus aureus and Pseudomonas aeruginosa, which are highly pathogenic). Physicochemical indicator testing involves pH value (5.5-7.0 is suitable for skincare products), heavy metal content (strict limits for lead, mercury, etc.), preservatives (such as parabens), antioxidants (vitamins C/E), and alcohol content (which needs to be controlled to minimize irritation). Safety testing assesses risks through skin/eye irritation tests (observing erythema and edema) and allergy tests (patch testing). Efficacy testing focuses on properties such as moisturizing (measuring water content), whitening (melanin measurement), sun protection (SPF/PA values), and anti-wrinkle effects (skin elasticity analysis).

Routine Items: Formaldehyde, Methanol, Thioglycolic Acid, Hydroquinone, Phenol, Vitamin D2, Vitamin D3, Amino Acids.

Inorganic Testing: Soluble Zinc Salts, Boric Acid and Borates, Total Fluorine, Strontium, Cadmium, Mercury, Arsenic, Lead, pH Value, Free Hydroxides.

Microbiology: Total Bacterial Count, Fecal Coliforms, Pseudomonas aeruginosa, Staphylococcus aureus.

Sex Hormones: Estriol, Diethylstilbestrol, Estradiol, Testosterone, Methyltestosterone, Progesterone.

Sunscreens: Benzophenone, p-Aminobenzoic Acid, Ethylhexyl Methoxycinnamate, Ethylhexyl Salicylate.

Preservatives: Methylchloroisothiazolinone, Methylisothiazolinone, Benzyl Alcohol, Phenoxyethanol, Benzoic Acid, Methyl, Ethyl, Propyl, and Butyl p-Hydroxybenzoates.

Dyes in Hair Dyes: Aminophenol, Resorcinol, Phenylenediamine.

α-Hydroxy Acids: Tartaric Acid, Glycolic Acid, Malic Acid, Lactic Acid, Citric Acid.

Anti-dandruff Agents: Salicylic Acid, Ketoconazole.

10. Antibiotics: Metronidazole, Oxytetracycline Dihydrate, Chlortetracycline, Tetracycline, Doxycycline Hydrochloride, Chloramphenicol, Tetracycline Hydrochloride, Minocycline Hydrochloride.

Sunscreen Efficacy in the UVB Region of Sunscreen Cosmetics, Qualitative and Quantitative Analysis of UV Absorbers

Dioxane, Acrylamide

Detection of 41 Glucocorticoids

Allergen Testing